/* unicode.h -- utilities for Unicode written by N. Tsuchimura */ #ifndef PTEXENC_UNICODE_H #define PTEXENC_UNICODE_H #include /* determine if UTF-8 character or not */ extern KPSEDLL boolean isUTF8(int length, int nth, int c); extern KPSEDLL int UTF8length(int first_byte); extern KPSEDLL int UTF8Slength(string buff, int buff_len); extern KPSEDLL long UTF8StoUCS(string s); extern KPSEDLL long UCStoUTF8(long ucs); #define LONG(a,b,c,d) ( ((long)(a)<<24) | ((long)(b)<<16) | ((c)<<8) | (d) ) #define BYTE1(x) (((x)>>24) & 0xff) #define BYTE2(x) (((x)>>16) & 0xff) #define BYTE3(x) (((x)>> 8) & 0xff) #define BYTE4(x) ( (x) & 0xff) /* UTF-8 -> UCS */ #define UTF8BtoUCS(a,b) ((((a)&0x1f) << 6) | ((b)&0x3f)) #define UTF8CtoUCS(a,b,c) ((((a)&0x0f) <<12) | (((b)&0x3f) << 6) | ((c)&0x3f)) #define UTF8DtoUCS(a,b,c,d) ((((long)(a)&0x07) <<18) | \ (((long)(b)&0x3f) <<12) | \ (((long)(c)&0x3f) << 6) | ((d)&0x3f)) /* UCS -> UTF-8 */ #define UCStoUTF8B1(x) (0xc0 + (((x) >> 6) & 0x1f)) #define UCStoUTF8B2(x) (0x80 + (((x) ) & 0x3f)) #define UCStoUTF8C1(x) (0xe0 + (((x) >> 12) & 0x0f)) #define UCStoUTF8C2(x) (0x80 + (((x) >> 6) & 0x3f)) #define UCStoUTF8C3(x) (0x80 + (((x) ) & 0x3f)) #define UCStoUTF8D1(x) (0xf0 + (((x) >> 18) & 0x07)) #define UCStoUTF8D2(x) (0x80 + (((x) >> 12) & 0x3f)) #define UCStoUTF8D3(x) (0x80 + (((x) >> 6) & 0x3f)) #define UCStoUTF8D4(x) (0x80 + (((x) ) & 0x3f)) /* UTF-32 over U+FFFF -> UTF-16 surrogate pair */ #define UTF32toUTF16HS(x) (0xd800 + ((((x)-0x10000) >> 10) & 0x3ff)) #define UTF32toUTF16LS(x) (0xdc00 + ( (x) & 0x3ff)) #endif /* PTEXENC_UNICODE_H */